Sugar-cane mill.



I. W|LS0N- n SUGAR CANE MILL.

APPLICATION FILED OCT. I, I9I5.

Patented Jan. 23, 1917.

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JOI-IN WILSON, 0F GLASGOW, SCOTLAND.

suona-cane MILL.

maratea.

To all whom t may concern:

Be it known that l, JOHN XVILSON, a subject of the British King, residing at 347 lCumbernauld road, Dennistown, Glasgow, Scotland, have invented certain new and useful Improvements in and Relating to Sugar-Cane Mills; and -l do hereby declare the following to be a full, clear,.and exact description of the invention, such aswill enable others skilled in the art to which it appertains to make and use the same.

his invention relates to improvements in mills for crushing sugar cane or like suband embodies the method of arranging rollers are in pairs, in such a way that a line drawn through the axes of each pair of rollers is parallel to similar lines drawn through the axes of the 4other pairs of rollers.

According to my invention I dispense with the usual form of headstock, and attach the bearings for the gudgeons of the rollers to the upper and lower sides respectively of pairs of rolled steel channel beams, having the inner sides of the channels in juxtaposition and facing each" other, thus forming in effect a hollow box girder. The attachment of the bearings to the frame is such that the ends of the rollers rotate in the same plane as the outer faces of the channelv beams, and the latter being inclined at a suitable angle, 45o or thereabout, the crushed cane drops from one pair of rollers' to the following pair, guided by a plate stretched across the bottom of the channel beams, and by the inside faces of chanv nel beams.

My invention will be understood by refH erence to the accompanying drawings, in which.:

Figurel is a section taken through the center lines of one pair of rollers; Fig. il is a sectional elevation taken through the bearings of the shaft appertaining to one pair of rollers; Figs. 3, 4 and 5 are elevations and cross section of the individual rollers; F ig. 6 is an elevation of the 'mill showing` one method of actuating the several rollers; and, ,F 7 is an elevation with the rollers in section. l

Referring to the drawings, the necks of the shafts A, B, to which the rollers C, l), are respectively attached are carried in the bearings E, F. These bearings E, ll?, afore- Specication of Letters Patent.

that class of mills, in which the ratenteuaan. as, iai. a.

Application led October I, 1915. Sera1No.`53,570.

said are secured to the flanges of the rolled steel channel beams 'G at suchi positions that the plane formed through the center line of the rollers is inclined to the plane formed by the flanges of `the channe beams G at an angle of 750 or thereabout. The caps of these bearings are limited in their movement by thebolts H, which pass through the body of the bearings and behind each pair of the channel beams (Jl, which are placed as shown with their vcavities facing inward, to forni in effect a hollow box girder. .The bolts lil are secured to the bodies of the bearings with nuts J'. The lower end of the bolts ein tend sufficiently to receive the bottom cap l, which is secured by nuts il in an iininovable position. The upper endv ofthe bolts l is Aextended to receive the cap l., which is free to slide upward and 'terminates at a point sufficiently distant to ive airother cap M, with steel springs ing between it and the said sli These springs are of a stron ate to the size of the rollers, and may ,1 in any degree of compression desiree. means of the nuts U on the extreme ont. the bolts j The pairs of channel beams (l on ci' sitesides of the mill are connected by a t steel plate l attached to the bottom flanT u lliis plate has openings' to clear the bottom rollers, with an at ronal clearV Sufficient to enable the espressed juice fall through.

A light chute Q, Figs. l and 7, is si pended from the column lt, F ig. if, and l* iii-position by suitable means. ln the pression of the juice from the cane the jui drops from they surface of the rollers into the chute @3, and the crushed cane or begasse slides down the surface of the plate l), seen in dotted lines in Fig. l, to the next pair of rollers, and finally to the begasse carrier or elevator, not shown. To facilitate lthis sliding or falling movement, the channels (l are placed in an inclined position, preferably' 45 to the horizontal plane. ln Fig. 3, l show one system oil forming the grooves on surfaces of the respective rollers, these grooves being 'of the' zigzag type. ln the apparatus herein described various types of grooves in the rollers are shown.

When more than three pairs of rollersare employed, l may `forni the grooves of the" second pair of rollers C", D similar to' those l fill pitch,

. provided, as shown, above cap L of each top roller bearing. For practical purposes the springs N may be all of equal power throughout, the increased pressure on the successive rollers being secured by screwing down the outer cap M more or less, according to the pressure found requisite.

@n reference to Fig. l, it will be seen that motion is imparted to the rollers by means of a wheel S, keyed to an extension at one end of the shaft of the lower roller. The upper roller obtains its motion from the lower by means of pinioiis T, T', attached to extensions of their respective shafts at the opposite ends. The wheel S may either be a bevelwheel driven by a bevel pinion, or any other suitable gearing may be employed. The bevel pinions are attached to a longitudinal shaft U, supported on bearings V, bolted to the outside of the channels G, as illustrated in Fig. 6. At the end of the shaft U, motion is obtained from a hori zontal transverse shaft W, by means of bevel gearing. This horizontal transverse shaft may in turn be vdriven from another horizontal superposed shaft Z, running at a :higher speed through suitable spur gearing, vthe bearings for both shafts being secured to the flanges of the channel beams G.

grooved Y I claim: l. Ina cane niill having the rollers mounted 11i pairs, 'the combination with a housing lcomprising two pairs of oppositely disposed channel beams, the flanges of each pair on each side of the mill being turned toward each other to forni a hollow box girder, a plate connecting the bottoms of the two box girders on opposite sides of the mill, said plate .being cut away to provide channels for the lower rollers and for the juice, bearings for -each pair of rollers mounted on ,opposite sides of said hollow box girders, and tie bolts passing through the hollow portion of said box girders and tying said bearings together, substantially as described.

2. In a cane millhaving the rollers mounted in pairs, the combination with a housing comprising two pairs of oppositely disposed channel beams, the flanges of each pair on each side of the mill being turned toward each other to form a hollow box girder, a plate connecting the bottoms of the two box girders on opposite sides of the mill, said. plate being cutaway to provide channels for the lower rollers and for the juice, bearings for each pair of rollers mounted on opposite sides of said hollow box girders, and tie bolts passing through the hollow portion of said box girders and tying said bearings together, with springs mounted on said tie bolts, and means forv adjusting the compres-l sion on said springs,- substantially as described.

In testimony whereof, I alix my signature, in presence of two witnesses.

JOHN WILSON.

Witnesses:

I. II. PEARsoN, F. MIDDLETON. 

